Divided tenpin.



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UNITED STATES PATENT. OFFICE.

DIVIDED TENPIN.

' Specication of Letters Patent.. Applicativi nea september 1 6. 1904. serial No. 224,746.

li'iiteiited. March 6, 1906.

To au whom it may concern;

Be it known that I, STEPHEN G. WILSON, a citizenof the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Divided Tenpin, of which the following is a specification.

' otherwise satisfactory vsolid wooden pin.

My invention relates to Vtenpins, and has for its object the extension of the life of parts of the individual pin Without sacrificing-the alley, theballs, or'adjoining pins.

As is Well known in the art to lwhich my invention a pertains, the damage to the tenpins is due, primarily, not to the action vof the all upon thepin, but to the cutting or striking of the'base of one pin upon the body of its neighbor. The pins when struck Withany considerable force ldo not .fall over nor drag along the alley, but are turned bodilyabove the alley, the base springing up and the top down, the result being that the base and top strike adjoining pinsl below and above, re-4 spectively, the point where the pins are struck by the balls. Many efforts have been made to overcome the wearing out of the base and sides by covering them with a Wear-resisting material. Likewise, elorts have been made to protect them by covering both the base and sides with an elastic substance. All eorts to use wear-resisting material have proved detrimental both to the alley at the point at which the pins ultimately strike it and to the balls, 'which are injured thereby,

and the use of resilient or elastic coverm s or coatings has been unsuccessful because o the unnatural effect of the ball u on the in and because. the desirable clic of t e ballagainst the pin is lacking.

My invention avoids the injurious eects of the wear of the pins -without in any manner losing the advanta es of the present A further object of my invention is to obtain ready land secure methods of attachment of parts of ins.

My invention ther consists of novel features of construction, all as will lie-hereinafter fully set forth.A i

Figure 1 is a central vertical section of a pin embodying my invention. Fig. 2 is a side elevation, partly in section, 'of a modified form of my construction. F ig.3 is a central vertical section and partial elevation of a pin,

i showing ia further modification of the same.

F g. 4 1s a central vertical-section and partial elevation of another modified form of my invention. Fig. 5 shows another formof atconnection with the construction of Fig. 1.

Similar numerals of reference indicate corresponding parts in the figures.

Referrin `to the drawings, 1 designates the top or han e portion of 'a pin having projecting therefrom a central cylindrical extension 2, Whose greatest diameter, as here illustrated, appears equally at 3 and 4, although this relation is evidently not necessary, and which is therebetween reduced in diameter at 5. This reduction also is not necessary, but adds to the resiliency of the ball by providing the ball. This space mightbe providedv by enlar ing the channel 6 at this point. This s ind e extension fits within a corresponding c annel 6 in a central or intermediate section or barrel 7, whose contour, as well as that of the base 8, combine with that of the top piece 1 to, roduce a pin of the usual or of anyy dedrical shapeabove described and be of any desired cross-sectionl or shape, uniform or non-uniform, 4provided that tie channel `6 in the intermediate portion 7 be of acorrespondingor at least not inconsistent shape. a square extensionhaving square or otherwise shaped reduced portion 5 would 't in a The base 8 is attached in the form shown in Fig. l by means of a stud 9, projectin from the cylindrical extension 2, said stu passing through aperture 10 in said base and eing secured therein by a nut 11, fitting in recess 12, so as to be flush therewith or to .lie within said recess. This nut 11 is provided with Spanner-openings 13 13, by which it can be readily releasedby'fmeans of aspannerportion of the bottom or base Sis provi ed .extension 2 is adapted to be seated, so that thesides of the base embrace the same, thus assisting in'holding the parts firmly in position. 29 designates a washer which may be placed end of t e extension 2, so that, if desired, the tightening of the parts Will be between the 7 to permit its revolution. f

'A salient feature of my invention is that tachment of the parts which may be used in sirab e shape. It will be evident that the' central extension 2 may vary from the cylin- Thus channel of either a square or a circular section.l

In the spiace between the base 8 and the lower' base 8 and the extension 2, releasing the partv a hollow annular cylindrical space throng 'v 'out that portion of the pin which is struck by Wrench 14 in the usual manner. The u er IOO with a recess 28, into which the end of the.

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all the sections of a pin are formed of the same material which is uniform with that previously found most desirable for tenpins and that there is therefore no unusual wear to the alley or balls by the use of my pins, n-or is there any variation in the wear of the partsA of the pins.

of longitudinally-divided.sections 5, having chambered top and bottom ends 16 17, which fit within recesses 18 and 19 in the top and bottom sections, respectively. I have here shown the sections held together by rod 20, extending throughout the length of the pin, secured at' the to thereof by any suitable head 21 and at t e bottom by nut 11. It will be evident that this mode of fastening may be used with the construction of Fig. 1. or that the means of attachment shown in Fig. 1 may be used with the construction of Fig. 2. The longitudinal divisions of the central portion 7 of Fig. 2 may occupy all or,

preferably, a part only of the space surrounding the rod 19, allowing a hollow space therearound, if desired.

vIn the construction shown in Fig. 3 the intermediate section 7 is secured to the top and bottom sections in the same manner as in Fig. 1, except that the spindle 5 is longer than the central portion 7 permitting the latter to turn upon the s indie. Rings 22 23, of any suitable materia ,prevent splitting of part 7. A plurality of rotatable parts may be used, if desired.

Fig. 4 shows the body of the pin made up of independent annular rings or laminations 24 mounted upon a uniform spindle 5" In Fig. 5 both terminal partsare shown screwed into the body by threaded extensions 25.26, an elastic Washer 27 being sl'iown at -one of these points, whose functions is to increase the bearing-surface-between the parts, leveling all inequalities and retammg the parts more effectually.

It will be evident that in all of the forms shown the fastening means may be operated equally well at top or bottom by a mere transposition of parts. A

It will be evident that various changes may be made by those lskilled in the art which 'may come within the scope of my invention,

and I do not, therefore, desire to be limited in every instance to the lexact construction herein shown and described.

Having thus described my invention, what I claim as new, and desire to secure byLetters Patent, is.-

1. In a se arable tenpin, a neck, a body and a base, a l of the same material but transversely divided from one another `and a removable connection between the parts.

2. In a divisible tenpin, a plurality of sections of uniform material transversely divided, a projection upon one of said sections registering with an opening in another of said sections and means connected with a third section for removably retaining the projection in said opening.

3. In a tenpin, a base, a top, a part movable relatively to the base, and a removable washer spacing the base and top to permit Witnesses:

WM. CANER WIEDERSEIM, l WM. S. JACKSON.

STEPHEN aiwiL'soN. 

